m54hc148k1 STMicroelectronics, m54hc148k1 Datasheet

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m54hc148k1

Manufacturer Part Number
m54hc148k1
Description
8 To 3 Line Priority Encoder
Manufacturer
STMicroelectronics
Datasheet
DESCRIPTION
The M54HC148 is an high speed CMOS 8 TO 3
LINE PRIORITY ENCODER fabricated with
silicon gate C
PIN CONNECTION
March 2004
HIGH SPEED:
t
LOW POWER DISSIPATION:
I
HIGH NOISE IMMUNITY:
V
SYMMETRICAL OUTPUT IMPEDANCE:
|I
BALANCED PROPAGATION DELAYS:
t
WIDE OPERATING VOLTAGE RANGE:
V
PIN AND FUNCTION COMPATIBLE WITH
54 SERIES 148
SPACE GRADE-1: ESA SCC QUALIFIED
50 krad QUALIFIED, 100 krad AVAILABLE ON
REQUEST
NO SEL UNDER HIGH LET HEAVY IONS
IRRADIATION
DEVICE FULLY COMPLIANT WITH
SCC-9410-017
PD
CC
PLH
OH
NIH
CC
= 16ns (TYP.) at V
= 4 A(MAX.) at T
| = I
(OPR) = 2V to 6V
= V
t
PHL
OL
NIL
2
= 4mA (MIN)
MOS technology.
= 28% V
CC
A
CC
RAD-HARD 8 TO 3 LINE PRIORITY ENCODER
=25°C
(MIN.)
= 6V
ORDER CODES
The M54HC148 encodes eight data lines to
three-line
circuitry (enable input EI and enable output EO)
has been provided to allow octal expansion
without the need for external circuitry. Data inputs
are active at the low logic level.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
PACKAGE
DILC
FPC
DILC-16
(4-2-1)
M54HC148D
M54HC148K
FM
binary
M54HC148
(octal).
FPC-16
M54HC148D1
M54HC148K1
EM
Cascading
1/10

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m54hc148k1 Summary of contents

Page 1

... EI and enable output EO) has been provided to allow octal expansion without the need for external circuitry. Data inputs are active at the low logic level. All inputs are equipped with protection circuits against static discharge and transient excess voltage. FPC-16 EM M54HC148D1 M54HC148K1 Cascading 1/10 ...

Page 2

M54HC148 IEC LOGIC SYMBOLS INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE ...

Page 3

LOGIC DIAGRAM This logic diagram has not be used to estimate propagation delays ABSOLUTE MAXIMUM RATINGS Symbol V Supply Voltage Input Voltage Output Voltage Input Diode Current Output ...

Page 4

M54HC148 RECOMMENDED OPERATING CONDITIONS Symbol V Supply Voltage CC V Input Voltage I V Output Voltage O T Operating Temperature op Input Rise and Fall Time SPECIFICATIONS Symbol Parameter V V High Level Input ...

Page 5

AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time (In - A0, A1, A2 Propagation Delay PLH PHL Time (In - EO, GS Propagation ...

Page 6

M54HC148 TEST CIRCUIT C = 50pF or equivalent (includes jig and probe capacitance pulse generator (typically OUT WAVEFORM 1: PROPAGATION DELAY TIMES,FOR INVERTING AND NON INVERTING OUTPUTS (f=1MHz; 50% duty cycle) 6/10 ...

Page 7

TYPICAL APPLICATION M54HC148 7/10 ...

Page 8

M54HC148 DIM. MIN. A 2.1 a1 3.00 a2 0.63 B 1.82 b 0.40 b1 0.20 D 20. 17.65 e3 7. 10.90 L 1.14 8/10 DILC-16 MECHANICAL DATA mm. TYP MAX. 2.71 3.70 ...

Page 9

FPC-16 MECHANICAL DATA DIM. MIN. A 6.75 B 9.76 C 1.49 D 0.102 0.127 E 8. 0.38 H 6.0 L 18. mm. TYP MAX. MIN. 6.91 7.06 0.266 9.94 ...

Page 10

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...

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